Hi Richard and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, bear with us; re-confirm and post back with the complete model number of the "...Magnavox DVD&VCR recorder..."
Additionally and as this seems to be an internal hardware issue, are you then considering a DIY (do-it-yourself) repair approach? ...or more particularly, would you be comfortable working on the inside mechanism and circuitry?
Appreciate the additional information.
The described symptom almost always point to an internal hardware issue or more particularly, possible suspects are:
All of the above would require that the unit be opened up for visual inspection, voltage/continuity/resistance checks, confirm faults and effect repairs.
I realize that the above information may perhaps be not what was expected. Unfortunately, there is no quick-n-easy fix and neither is there a workaround; sorry for having to be the bearer of bad news.
Are you then considering a DIY (do-it-yourself) repair approach?